This patch is to let ethtool enable/disable the tc flower offloadfeatures. Hardware enetc has the feature of PSFP which is for per-streampolicing. When enable the tc hw offloading feature, driver would enablethe IEEE 802.1Qci feature. It is only set the register enable bit forthis feature not enable for any entry of per stream filtering and streamgate or stream identify but get how much capabilities for each features.